
Car engine belts generally need to be replaced every 60,000 to 80,000 kilometers. Below is an introduction to the function of the engine belt and inspection methods: Function of the Engine Belt: The engine belt, also known as the timing belt, is a crucial component of the engine's valve system. It connects to the crankshaft and maintains precise timing for intake and exhaust through a specific transmission ratio. Belts are used instead of gears for transmission because they produce less noise, have minimal self-variation, and are easier to compensate for. However, it is evident that the lifespan of a belt is shorter than that of metal gears, so regular replacement is necessary. Inspection Method for the Timing Belt: The timing belt is often concealed behind a cover, and accessing it depends on the engine and engine compartment layout. The cover over the timing belt can be removed or moved aside. Carefully inspect and replace the belt. During inspection, if the belt does not appear well-maintained and properly tensioned, it should be replaced promptly.

As a seasoned commuter driver, let me share some practical advice: The car's engine belt typically needs replacement between 60,000 to 100,000 kilometers, depending on the vehicle model and driving habits. My first car's manual recommended changing at 80,000 km, but since I drove it hard, I noticed squeaking noises at 60,000 km and replaced it immediately to prevent accidents. If not replaced timely, a broken belt can cause pistons and valves to seize in the engine, leading to repair costs of several thousand dollars – what a loss! I suggest having mechanics routinely check for cracks or wear during maintenance, especially for those frequently driving on bumpy roads. Early replacement saves both money and hassle. Remember, don't always push to the mileage limit – safety comes first. It's wise to inspect every 50,000 km or so.

From my observations in auto repair, the golden period for engine belt replacement is around 60,000 to 80,000 kilometers, depending on the vehicle's condition. Over time, belts can stretch or crack, affecting the timing system. If the belt breaks, the engine can be completely ruined, with repair costs reaching tens of thousands of yuan. I've seen many car owners delay replacement until 100,000 kilometers to save money, only to end up stranded on the road and needing a tow. It's best to have a technician regularly check the belt tension during maintenance using specialized tools and address any abnormalities early. Additionally, in hot weather or frequent traffic congestion, belts wear out faster and should be replaced at 60,000 kilometers—don't wait until it's too late. Remember, stable engine operation relies on belt maintenance: invest early to avoid greater losses later.

To be honest, don't wait until over 100,000 kilometers to replace the engine belt, or small issues may turn into big troubles. A broken belt due to aging can damage engine components, leading to expensive repairs and wasted time. I recommend inspecting and replacing it every 60,000 to 80,000 kilometers, especially for vehicles frequently driven long distances or on mountain roads. Regular maintenance helps detect potential problems early, saving money and ensuring safety. Those who drive for a living should pay extra attention—don't let belt failure disrupt your work.


